Autoroute du Soleil in August

Will be driving down to just south of Lyon and back in the second half of August, via Reims / Troyes/ Dijon, having not been to that area of France before. Wiki tells me that in the summer “the traffic jams can stretch for hundreds of kilometres ”!!!

Is this hyperbole, or is it particularly bad? French motorway experience up until now has been that they’re a dream compared to the UK!

Thanks all for the pointers. We have decided to travel earlier in the week, mainly travel through the night, and to break it up with a couple of nights stopover in Dijon (or nearby). Hopefully it’ll go smoothly!